Question

Which pairs of expressions are equivalent to one another? Mark all that apply.

-10 - (-7) and -10 + (-7)
7 + (-16) and 16 - 7
11 - 5 and 11 + (-5)
7 - 13 and 13 - 7
-20 - (-45) and -20 + 45
9 + 8 and 9 - (-8

Answer 1

11 - 5 and 11 + (-5)

-20 - (-45) and -20 + 45

9 + 8 and 9 - (-8

Explanation:

Two negatives make a positive so -- and + are the same